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Finding the Fourth Proportional to 268,374.53, 402,561.53 and 68,694.59

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Solution

The fourth proportional to 268,374.53, 402,561.53 and 68,694.59 is: 103,041.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,374.53 : 402,561.53 = 68,694.59 : x
  2. Step 2: Convert to fraction form
    268,374.53/402,561.53 = 68,694.59/x
  3. Step 3: Cross multiply
    268,374.53x = 402,561.53 × 68,694.59
  4. Step 4: Simplify right side
    268,374.53x = 27,653,800,173.66
  5. Step 5: Solve for x
    x = 27,653,800,173.66/268,374.53
  6. Step 6: Final answer
    x = 103,041.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.